Device for turning music



F. E. HARTUP DEVICE FOR TURNING MUSIC Filed March 4, 1922 2 Sheets-Sheet 1 Apr. 24, 19231.

F. E. HARTUP DEVICE FOR TURNING MUSIC ill. I. NLH- f 04111!!!Illilll/llllll .zlllrlllllillll 2 Sheets-Sheet 2 Filed March 4, 1922 Patented Apr. 24, 1923.

UNITED STATES PATENT QFFICE.

FRANK E. HARTUP, OF INDIANAPOLIS, INDIANA, ASSIGNOR OF ONE-HALF TO 2 WILLIAM M. KUNKEL, OF INDIANAPOLIS, INDIANA.

DEVICE FOR IIIR-NING MUSIC.

Application filed March 4, 1922. Serial No. 541,018.

To all whom it may concern:

Be it known that I, FRANK E. HAn'rUr, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Devices for Turning Music, of which the following is a specification.

This invention relates particularly to a device for turning leaves of music; and one of the objects of the invention consists in the provision of a device whereby a musician, especially in orchestra work, can me chanically turn the leaves of the music being played back and forth as the necessity for repeating certain portions of the music is required, without causing interruption as the playingof the music proceeds.

I accomplish the above object of the 1nvention, and such others as may appear from a perusal of the following description and claims, by means of one of my preferred embodiments illustrated in the accompanying drawings, forming a part hereof, in which Figure 1 is a perspective view of a conventional type of sheet music stand, having my invention incorporated therein. Fig. 2 is a side elevation of the upper portion of the music stand. Fig. 3 is an enlarged detail of the adjustable joint of the leaf turning arms. Fig. 4 is an enlarged view of the mechanism for operating the leaf turning arms. Fig. 5 is a vertical cross section, on the plane 5-5 in Fig. 4. Fig. 6 is a vertical cross section, on the plane 6-6 in Fig. 4. Fig. 7 is a fragmentary detail plan view of the hand-lever for resetting the mechanism, on the plane 77 in Fig. 4.

Referring to the drawings, 10 and 11 represent a pair of members which comprise the telescopic body of the music stand: 12 the folding legs, and 13 the music holding rack, constituting the parts of a conven tional andwell known type of music holding stands. To the central member 13 of the rack 13 I secure a casing 15v for enclosing the mechanism for oscillating the arms for turning the leaves of music. As shown in Fig. 4, this mechanism comprises a number of parallel oscillating shafts 16 which extend through the upper wall of the casing 15, and to the exposed portions of these shafts I secure the leaf turning arms to be hereinafter more fully described. Each shaft 16 is provided with a pair of longitudinally moving but non-rotating companlOIl sleeves 17 and 18 which are spaced apart so as to allow each sleeve to slide independently along its associated shaft. Sleeves l7 and 18 are further provided with the respective extensions 19 and 20 by which they are moved longitudinally. Sleeve 17 is provided with a spiral slot 21 and sleeve 18 with a similar slot 22, except that the slots are cut on diverging planes, and the associated shaft 16 is provided with pins 23 and 24 which engage the respective spiral slots 21 and 22. Hence, when a pulling force is applied to the free end of extension 19 of sleeve 17 the latter is moved or pulled downwardly on shaft 16, and the edge of spiral slot 21 riding against pin 23 will cause shaft 15 to rotate about one-half of a revolution and thereby change the position of the attached leaf turning arm 30 from the position shown in dotted lines to that shown in full lines in Fig. 4. During this enforced downward travel of sleeve 17 the sleeve 18 idles upwardly along said shaft by virtue of the engagement between pin 24 and spiral slot 22 in said sleeve.

As the execution of the music on each leaf or sheet is completed, the next leaf is turned by the operation of the successive shaft 16 through the instrumentality of the sleeve 17 which contains a spiral slot 21' which acts upon a pin 28 these parts corresponding to the previously described parts as 17, 21 and 23.

As heretofore stated, each oscillating shaft 16 is provided with a leaf turning arm comprising a slender rod 30 and supporting head 30 which latter may be adjusted longitudinally along its shaft 16 for accommodating sheets of music of different lengths, and when the desired adjustment of the arm 30 and head 30 is attained they are secured in position by means of a set-screw 31. The leaf turning arms 30 may also be swung around so as to stand parallel with shafts 16, as when it is desired to fold the music stand, and this I accomplish by adjustably securing the arm to the head 30' by means of a thumb-screw 32. Each of the arms 30 is provided with one or more leaf attaching devices 30 which may be of any suitable character, for attaching the upper edge of each sheet to its respective arm 30.

The present drawings illustrate four shafts 16, giving the device a capacity for handling four sheets, but the number of shafts and their associated parts'may be extended to include a greater number or may be reduced to a lesser number, as circumstances may dictate, without departing from the spirit of this invention.

To oscillate shafts 16 at theproper time and in proper order I provide certain mechanism which is enclosed in a casing attached at a convenient point to the lower section 11 of the body of the music stand. Arranged within and projecting through the upper wall of casing 35 is a plurality .of sliding plates 36 which correspond in number to the number of Xtension 19 and 19, and the free ends of extensions 19 and 19 are connected to the sliding plates 36 by means of suitable wire cords 37 which are drawn taut by a further extension of the two members 10 and 11 forming the body of the music stand. The normal position of the sliding plates 36 is at the limit of their upward travel, and when these plates are depressed and then released they return to their normal position under the influence of springs 38. Sliding plates 36 are guided in determined paths of travel at one point by the wall of casing35 and a loop forming strap 39 at another. The lower ends of the plates 36 terminate in right angle extensions or feet 36 which provide a contact means by which the sliding plates are depressed and these feet also serve as a stop for limiting the upward movement of the plates 36 when the feet 36 engage the lower edge of strap 39, as indicated in Fig. 5. The sliding plates 36 are depressed singly and in progressive order by means of a. hook 40 arranged on atransverse movable bar 41 which is supported in frame 42 having vertical movement in the casing by reason of its mounting in the guideways 43. Frame 42 is normally held at the limit of its upward travel by means of the springs 44- WVlllC-ll are attached at one end to said frame and at the other to casing 35.

Frame 42 may be depressed through the medium of a wire cord 45 leading to and connecting with a foot pedal 46 which is arranged in the lower portion of the music stand where it is readily accessible to the operators foot, as-indicated in 1. lVhen foot pedal 46 is depressed frame 42 is also depressed, and presuming that at the initial starting of the device transverse movable bar 41 occupies its initial starting position as indicated by the dotted lines in Fig. 4. hook 40 on bar 41 is brought into engagement with foot 36 whereby the first sliding plate 36, arranged in the left hand end of casing 35, is depressed. This downward movement of the sliding plate 36 acting through its connected -wi re cord 37,-draws't-he extension 19 andits attached sleeve 17 downwardly on shaft 16 tion.

and by means of the spiral slot 21 and the pin 23 shaft 16 is oscillated a sufficient distance to move leaf turning arm 30 from the position shown in dotted lines to'the position shown in full lines in Fig. 4. On the downward travel of frame 4-2 a pin 47 arranged on the back wall of the bar 41 (see Fig. 5) contacts and presses backward a pawl 48 which is pivoted at 48 to casing After pin 47 has cleared the lower end of pawl 48 in its downward travel the said pawl is returned to normal position .by means of a sliding toothed plate .49 which is held under tension by means of a spring 50. Sliding plate 49 is provided with a number of notches which correspond to the number of pawls 48 whereby a single spring actuated plate is sufficient to control the action of all of the pawls employed in the,

device. The interposition of the pawl 48 into the vertical path of travel of pin 47 is to cause the pin and its attached bar 41 to move laterally in frame 42 during the upward movement of the parts to normal posi- This lateral shifting movement of bar 41 serves two purposes, first, it'brings about the disengagement of hook 40 from .foot 36 thus allowing sliding plate 36 to freely return to normal position under the action of its spring 38 and also removes the tension from the sleeve 17, and second, hook 40 is moved into proper position so as to come into contact with the next foot on the succeeding sliding plate when frame 42 is again depressed. During the second downward movement of the frame 42 pin 47' presses backward a second pawl, similar to pawl 48, whereby bar 41 is progressively shifted laterally, this movement being continued until the last sheet of music is turned. lVhen the bar 41 has reached the end of its lateral travel it may be returned to its initial or normal position by certain mechanism to be hereinafter described.

Presuming that after the music has been played on the first sheet and it is desired to repeat the music thus played, the sheet may be turned back to its original position by certain mechanism which will now be described.

It has heretofore been stated that the second shaft 16 is provided with a pair of companion sleeves 17 and 18 the function of the sleeves 17 and 17, etc, being to turn the shafts 16 from right to left whilethe funct on of sleeves 18 and 18. etc., is to turn the leaves backward. These sleeves 18 and 18 similar to the sleeves 17 and 17*, are provided with the spiral. slots 22 and 22 which are engaged by the pins 24 and 24?, and the sleeves 18 and 18 are further provided with the extensions 20 and 20 by which said sleeves are moved.longitudinally of the extensions 20 and 20 are connected by means of the wire cords 51 and 51 to the adjacent ends of the sliding plates 52 which are arranged in casing similar to sliding plates 36. The sliding plates 52 are also provided with feet 52*- (Fig. 6) similar to the feet 36. The sliding plates are operated in successive order similar to plates 36, by means of a hook 54 which is arranged on a transverse movable bar 55 carried in a frame 56 having vertical movement in casing 35, and these plates are normally held at the limit of their upward travel by means of springs 57. Frame56 is depressed by means of a wire cord 58 which is connected to a foot pedal 59, and frame 56 is normally held at the limit of its upward travel by means of springs 60. Bars 41 and 55 are connected together by means of a connector link 63 which permits free independent vertical movement of the frames 42 and 56 but which enforces simultaneous lateral move ment of the two bars 41 and 55, and it is the purpose of link 63 to keep hooks and 54 in proper registration with the feet on the sliding plates 36 and 52. As an illustration, when the operator depresses foot pedal 46 and lower sliding frame 42 the extension 19 and its connected sleeve 17 will be lowered and thereby oscillate the associated shaft 16 in a counter clockwise direction. WVhen foot pedal 46 is released frame 42 will return to normal position and bar 41 will be shifted. laterally, by reason of the engagement of pin 47 with pawl 48, and bring hook 40 into a proper position so as to engage foot 36 on the succeeding plate 36 when frame 42 is again depressed. During the above mentioned lateral movement of bar 41 a like movement is imparted to bar through connector link 63. If, at this time, it is intended to repeat the music on the first sheet the latter may be turned back by depressing foot pedal 59 which, operating through a wire cord 58, depresses frame 56. As frame 56 descends a pin 67 on the rear wall of bar 55 (Fig. 6) engages the angular edge 69 of a stationary plate 69 which causes bar 55 and its connected bar 41 to be shifted laterally towards the starting position. During the downward movement of frame 56 and the lateral shifting of bar 55 hook 54 will engage foot 52 and cause the first plate 52 to be depressed. This action of plate 52 is transmitted through a wire cord 51 to extension 20 causing sleeve 18 to be depressed and oscillating the asso-- ciated shaft 16 in a counter clockwise direction. On the next depression of foot pedal 46 sleeve 17 is moved to again oscillate shaft 16 in a clockwise direct-ion, this operation being repeated until the several sheets of music have been turned. If it is desired at any time to move bars 41 and 55 back to starting position this can readily be done bymanually shifting the hand-pin 65 which that during each downward movement of the vertical sliding frame 56 the pin 67 contacts in successive order the angular edges 69 of stationary plate 69. I

The means employed for manually shifting bars 41 and 55 towards starting position is best shown in Fig. 7. Hand-pin 65 is mounted on a plate 7 0 which is susceptible of lateral movement. Plate 70 has one of its edges bent at right angles to form a flange 71 which rides against the adjacent edge of bar 55. This construction permits bar 55 and its supporting frame 56 to freely move vertically, but subjects said bar to enforced lateral travel when plate 7 O is shifted by hand-pin 65.

The foregoing description is merely illustrative of the principles of my invention, and other modifications thereof may be made that will function in substantially the same manner without departing from the spirit of the invention, and I do not, therefore, desire to limit myself to the use of any specific form of the parts illustrated.

Having thus fully described my said invention, what I desire to secure by Letters Patent, is-

1. A device for turning leaves of music comprising a plurality of oscillating shafts, arms on the shafts to provide means for attaching the leaves containing the musical composition, a pair of longitudinally movable spirally slotted sleeves arranged on each shaft, pins carried by each shaft for engaging the slots in its associated sleeves, and an actuator means progressively actuating one sleeve on each shaft for independently oscillating the shafts in one direction.

2. A device for turning the leaves of music comprising a plurality of oscillating shafts, arms on the shafts to provide means for attaching the leaves containing the musical composition, a pair of longitudinally movable spirally slotted sleeves arranged on each shaft, pins carried by each shaft for engaging the slots in its sleeves, an actuator means for progressively actuating one sleeve,

on each shaft for independently oscillating the shafts in one direction, and means for returning the actuator means to normal at the will of the operator.

3. A device for turning leaves of music comprising a plurality of parallel oscillating shafts, arms carried by the shafts for attaching the leaves containing the musical composition, a pair of longitudinally movable spirally slotted sleeves arranged on each shaft, pins carried by each shaft to engage the spiral slots in its sleeves, actuator means for progressively moving one sleeve on each shaft for imparting oscillatory movement to the shafts in one direction, and means for independently and progressively oscillating each shaft back to normal position.

4. A device for turning leaves of music comprising a plurality of oscillating parallel shafts, arms carried by'each shaft for attaching the leaves containing the musical composition, a pair of longitudinally movablespirally slotted sleevesicarried by each shaft, said sleeves constituting apart of an upper-and a lower, group of sleeves, pins carried by each shaft ,to engage the spiral slots in its associated sleeves, an independent actuator means for actuating the sleeves in each group, anda shifting means carried by each actuator means for intermittently actuating each sleeve progressively in a given group.

In Witness whereof I have hereunto set my hand and seal at'lndianapolis, Indiana, this 21st day of February, A. D., one thousand nine hundred and twenty two.

FRANK E. HARTUP. 11.3.1 

